L9929 Ver la hoja de datos (PDF) - STMicroelectronics
Número de pieza
componentes Descripción
fabricante
L9929 Datasheet PDF : 23 Pages
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L9929
DIA21
-
-
-
-
0
0
1
1
Encoding of the Diagnostic Bits of the Output-Stages OUT1 and OUT2
DIA20
DIA11
DIA10
-
0
0
Short circuit over load (SCOL)
-
0
1
Short circuit to battery on OUT1 (SCB1)
-
1
0
Short circuit to ground on OUT1 (SCG1)
-
1
1
No error detected on OUT1
0
-
-
Open load
1
-
-
Short circuit to battery on OUT2 (SCB2)
0
-
-
Short circuit to ground on OUT2 (SCG2)
1
-
-
No error detected on OUT2
0
0
0
Description of DIA_REG Bit7
0
Undervoltage on Pin VS
EN
DI
DIA_REG Bit7
0
0
0
0
1
0
1
0
1
1
1
0
5.8 Device Identifier and Revision Number
The IC's identifier is used for production test purposes and features plug & play functionality depending on the
systems software release. It is made up on a device-number and a revision number each one read-only acces-
sible via standardised instructions.
The Device number is defined once to allow indentification of different IC-Types by software.
The Revision number may be utilised to distinguish different states of hardware. The contents is divided into an
upper 4 bit field reserved to define revisions correspondending to specific softwarereleases. The lower 4 bit field
is utilised to indentify the actual maskset.
Both (SWR and MSR) will start with 0000b and are increased by 1 every time an according modification of the
hardware is introduced.
5.9 Reading the IC Identifier (SPI Instruction: RD_IDENT):
IC Identifier1 (Device ID)
7
6
5
4
3
2
1
0
ID7
ID6
ID5
ID4
ID3
ID2
ID1
ID0
Bit
7...0
Name
ID(7...0)
ID-No.: 1010 0001
Description
5.10 Reading the IC revision number (SPI Instruction: RD_VERSION):
IC’s revision number
7
6
SWR3
SWR2
5
SWR1
4
SWR0
3
MSR3
2
MSR2
1
MSR1
Bit
7...4
3...0
Name
SWR(3...0)
MSR(3...0)
Description
Revision corresponding to Software release: 0Hex
Revision corresponding to Maskset: 8Hex
0
MSR0
15/23
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